Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Use Temporal.ZonedDateTime.from() when an RFC 9557 timestamp includes a bracketed time-zone annotation, such as [Asia/Tokyo]. For an offset-bearing timestamp without a bracketed zone, use Temporal.Instant.from(); convert it to a time zone only if your application has one to apply.
Choose the Temporal type that matches the information in the timestamp
RFC 9557 defines Internet Extended Date/Time Format (IXDTF), an extension of RFC 3339. Its optional suffix can carry a bracketed time-zone annotation and key/value tags. A ! marks critical information. RFC 9557’s suffix is optional, so an RFC 3339 timestamp without one can still be IXDTF. See the RFC 9557 specification.
| Type | What it represents | Use it when |
|---|---|---|
Temporal.Instant |
A point on the timeline. | The timestamp’s offset identifies an instant, and you do not need to retain a particular zone. |
Temporal.ZonedDateTime |
An instant with calendar and time-zone context. | The input includes a bracketed zone and your application needs its regional time rules for display or calendar arithmetic. |
Temporal.PlainDateTime |
Local date and time fields, without a zone-derived instant. | You have wall-clock fields only. Do not use it when the input offset is meant to identify an instant. |
Temporal’s string-format documentation distinguishes these kinds of date and time values. An offset such as +09:00 identifies a relationship to UTC at that timestamp; it does not, by itself, preserve a region’s future or historical time-zone rules.
Parse a timestamp that includes a bracketed time zone
Pass the complete timestamp to Temporal.ZonedDateTime.from() when it has both an offset and a named zone:
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
const zdt = Temporal.ZonedDateTime.from(
'2020-08-05T20:06:13+09:00[Asia/Tokyo]'
);The bracketed [Asia/Tokyo] supplies the zone context required for string input to ZonedDateTime.from(). A plain RFC 3339 timestamp such as 2020-08-05T11:06:13Z has no such annotation and is not enough to create a ZonedDateTime from a string. Invalid strings cause a RangeError. The TC39 ZonedDateTime documentation describes the accepted input.
For regional calculations, retain the named zone rather than substituting a fixed offset. IANA time-zone rules can change; a zone name represents a rule set, while a numeric offset describes the offset at a particular time. RFC 9557 supports offset-only zone annotations such as [+01:00] for compatibility, but strongly discourages relying on them for calculations that need future local-time rules.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Parse an offset timestamp without a bracketed zone
If the timestamp represents an instant but has no zone annotation, parse it as an instant. Choose a zone separately if you need a local representation:
const instant = Temporal.Instant.from('2020-08-05T11:06:13Z');
const tokyoView = instant.toZonedDateTimeISO('Asia/Tokyo');This conversion does not recover a zone from the input. It applies the independently selected Asia/Tokyo zone to the instant. That distinction matters when an application must preserve the sender’s intended region: an offset-only timestamp contains no regional zone to recover.
Free tools Windows power users keep installed
One-click scans. No signup required.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Decide how to handle an offset that conflicts with the zone
A timestamp can contain an offset and a named zone whose rules disagree—for example, if the zone’s rules have changed since a future timestamp was recorded. Decide whether the input offset or the zone’s local-time rules should take precedence, and make the policy explicit:
const value = Temporal.ZonedDateTime.from(input, { offset: 'reject' });| Option | Behavior on a mismatch | Priority |
|---|---|---|
use |
Follows the input offset, even if the local time changes. | Preserve the exact instant. |
ignore |
Follows the named zone’s rules, even if the instant changes. | Preserve the local clock time. |
prefer |
Uses the supplied offset when valid; otherwise follows the zone’s rules. | Accept a valid supplied offset when possible. |
reject |
Throws a RangeError on a mismatch. |
Require explicit handling. |
Temporal.ZonedDateTime.from() defaults to reject. The Temporal time-zone documentation explains these policies.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Account for RFC 9557 details and Temporal’s parsing limits
Distinguish Z from +00:00
RFC 9557 updates RFC 3339’s interpretation: Z indicates that UTC time is known while the local offset is unknown; +00:00 indicates that UTC is the preferred reference point. As Section 2.2 puts it: “If the time in UTC is known, but the offset to local time is unknown, this can be represented with an offset of “Z”.” Do not treat the two spellings as identical statements about the source’s local offset. See RFC 9557.
Do not treat successful Temporal parsing as strict RFC validation
Temporal accepts some ISO 8601 extensions that RFC 9557 does not define, including six-digit years. If strict RFC 9557 conformance matters, validate the string against the RFC grammar separately; acceptance by Temporal.ZonedDateTime.from() alone does not prove conformance.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Handle critical annotations deliberately
RFC 9557 suffix tags use lowercase keys and case-sensitive values unless a specification says otherwise. A ! before the time-zone name or tag marks the information as critical. Under RFC 9557, a recipient must act on an inconsistency involving a critical annotation; an elective annotation permits action without requiring it. Do not silently ignore information your application is required to honor.
Know how leap seconds are represented
Temporal does not preserve leap seconds as distinct values. When an RFC 9557 timestamp has a seconds field of 60, Temporal parsing converts it to 59. If your application must retain distinct leap-second information, use a representation or processing strategy designed for that requirement.
Round-trip a zoned value
Temporal.ZonedDateTime.toString() produces an RFC 9557-style zoned string that can be passed to Temporal.ZonedDateTime.from() to recreate the value’s fields. Its options can control the offset, zone name, calendar annotation, and precision, so output may include a calendar suffix as well as the time-zone suffix. See the ZonedDateTime API documentation.
Check Temporal availability in your JavaScript runtime
The official Temporal documentation does not provide a current runtime-by-runtime native support matrix. Verify availability in each browser, server, or other JavaScript environment you deploy to before relying on a native global; do not assume that Temporal is available everywhere.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
